Question about 1992 Chevrolet Lumina APV

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Engine still cuts out and backfires after changing coverter

I have replaced egr,idle senser ,map senser , and replaced the catalatic converter

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  • tracer1959 Jan 21, 2009

    The car is a 1992 lumina.3.1

  • tracer1959 Jan 21, 2009

    This is on a 1992 chevy lumina/3.1,it has about 186,000 miles on it.I guess you could be right,it also gets kind of hard to start,fuel smells kind of rich

  • tracer1959 Jan 23, 2009

    can you help me locate the crankshaft positioning sensor on my 92 chevy 3.1

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This seems to be a timing problem. backfiring usually means that the timing is off. The timing belt sproket could have worn off or belt its slipping.If your car has a timing chain that could have broken sprokets. Timing is usually the culprit here in cases like this.

Posted on Jan 21, 2009

  • Daniel Arellano
    Daniel Arellano Jan 27, 2009

    The cranshaft position sensor is located under the timing cover near the crankshaft.

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